And who can be heard singing this?

We've all seen a man at the liquor store beggin' for your change
The hair on his face is dirty, dread-locked, and full of mange
He asks a man for what he could spare, with shame in his eyes
"Get a job you fucking slob," is all he replies
God forbid you ever had to walk a mile in his shoes
'Cause then you really might know what it's like to sing the blues